V-TWIN SYNTHETIC PRIMARY OIL 1QTFull synthetic, ester based motorcycle gear oil Formulated for use in high performance V Twin transmissions and primary chain cases Designed for all 1984 and newer Harley Davidson models with wet diaphragm spring clutches Shear stable formula provides superior protection from wear, pitting and spalling Ensures optimal clutch engagement, prevents slippage and minimizes wear Extends chain life by minimizing stretch and wear